Tiny optical gyroscope could find a home in phones and drones » Drone Accelerator
Drone Major Group
by on October 26, 2018
Engineers at the California Institute of Technology (Caltech) have created the world’s smallest optical gyroscope, a sensor that could be used in smartphones and drones.
The tiny device, which is smaller than a grain of rice, determines its position in three-dimensional space using what’s known as the Sagnac Effect. Based on the principles of general relativity, the Sagnac Effect occurs when a beam of light is split and the two resulting beams travel in opposite directions in a circle, arriving at the same light detector. Despite the fact that the speed of light is constant, rotating the plain in which these beams move causes one beam to arrive earlier than the other. When these loops are placed on each axis of orientation, the Sagnac Effect can be used to determine spatial position.
Continue> https://www.theengineer.co.uk/optical-gyroscope-phones-drones/
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Posted in: Sensors & Payloads
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